"There was some news that he seemed disoriented. So we're concerned about it," said Weiss, who does not suspect foul play in her son's disappearance. "His phone is turned off or dead. Since Tuesday night, he hasn't been using his phone.

"He's on foot," she said. "He doesn't own a car or bike."

Her son was described as a 6-foot, 200-pound white male with dark brown hair -- which is a little long in the front -- and green eyes.

He was last seen wearing a light-colored, button down style, short-sleeve polo shirt and jeans. He also wears a yarmulke.